Roller-punch



(No Model() A. HAMILL. ROLLER PUNCH.

No. 429,442, Patented June s, 1890.

Imre'niom gewi Y MW M f il@ kwa@ i UNITED STATES PATENT I OFFICE.

ALEXANDER IIAMILL, OF BALTIMORE, MARYLAND.

ROLLER-PUNCH.

SPECIFICATION forming part of Letters Patent No.v 429,442, dated June 3, 1890. Application ned December s, 1889. seria No. 332,399.- (No man.)

To @ZZ whom it may concern:

Be it known that I, ALEXANDER HAMILL, a citizen of the United States, residing at Baltimore, in the State of Maryland, have invented certain new and useful Improvements in Roller-Punches; and I do declare the following to be a full, clear, and exact description of the invention, such as will enabley others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the iigures of reference marked thereon, which form a part of this specification.

My invention relates to improvements in roller-punches which are particularly adapted for use in marking out the outlines of a dresspattern by suitable perforations in paper,

by the device may be conveniently handled and caused to in ove in any direction under any desired pressure, and thereby produce a line of perfor-ations in the paper which will designate the outlines of the dress-pattern, the

device being so constructed that the punches j thereof may be readily changed to others of different form when dierent dress-patterns are to be marked on the same sheet of paper, provision likewise being made whereby the paper will be readily released from the punch during the operation of perforating, all of which I accomplish by the devices hereinafter fully described and claimed, reference being had to the accompanying drawings, in which- Figure I shows a side elevation of the device, a part of the roller shown in section. Fig. II shows a cross-section through the roller, the section being indicated by the line X X, Fig. I. Fig. III showsamodification of the device looking on the roller end thereof, wherein the presser is made vseparate from the handle. Fig. IV shows a detail sectional view of a cutter. Fig. V represents a piece of paper that has been perforated by the device. Fig. VI represents a cross-section of one of the cutters, taken on the line m fm, of Fig. IV.

The same numbers refer to the same or similar parts throughout the several views.

which rotates the said roller 10, being supported on either side by a suitable bearing lprovided in the ends of the said jaws, the

split pins 15 serving to hold this pin 11 in position.

In order to conveniently guide the roller and at the same time put thereon any desired pressure, there is provided the presser 12, which is made integral with the handle 8, the grasp 30 thereof located immediately over the pin 11, upon which rotates the roller 10.

YIn Fig. III a modification is shown, wherein the presser 12 is made independent of the handle 8, whereby its relative position with the said handle may be changed to suit the convenience of the operator, in the construction of which the jaws 9 of the handle 8 are suiiiciently far apart to straddle the jaws 14, which inthis case are provided with the presser 12, the pin 11 being here made sufiiciently long to pass through all these parts, and is secured therein by the split pins 15.`

The roller 10 is preferably made of brass and is of the disk form shown, a recess 16 being formed in one side thereof, whereby suitable metal will be left at the hub 17 to properly support the roller, and whereby sufficient metal will be left at the periphery 2 0 thereof to properly secure therein the tubular steel cutters 18, radial holes 19 being formed at regular-and suitable distances one from the other around the circumference of the roller, in which are placed the said cutters 18, the

set-screws 21 being threaded in the metal of the roller on the side thereof, serving to hold the said cutters 18 in any desired position, the inner ends of these cutters 18 projecting through the metal 2O of the periphery and into the recess 16, whereby a proper clearance for the cuttings will be provided as they ICO paper during the process of perforation, the grooves 23 are formed around the circumference of the roller, one groove on each side of the line of cutters and as near thereto as practicable, a band of soft rubber 24 being placed in the said grooves, of sufficient thickness to extend outside of the roller and nearly or fully to the cutting-edge 22 of the cutter, whereby this rubber band 24 will yield sufficiently to permit the cutter to perforate the paper, and when the cutteris being drawn therefrom by the circumferential movement thereof the elasticity of the rubber will draw the paper from the cutter, thus avoiding the possibility of tearing the paper and preserving a smooth edge to the perforations therein.

In operating it is the custom to trace on a sheet of paper 26, Fig. V, the outlines 27 of the pattern that is to be perforated by the roller-punch, the paper being laid upon a table the surface of which is of proper material to permit the cutter to punch a clean hole in the paper. The handle 8 of the rollerpuneh is held and propelled by one hand, the grasp 30 of the presser 12 being held by the other hand of the operator, by which the movement of the roller is directed to follow the line of the pattern, and by which sufficient for the economy of space or material to place more than one pattern on the same sheet of paper, there are employed other sets of cutters 18, whose cutting-edges 22 are other than a circular form, whereby lines of dierent character may be formed, and thus designate the different patterns, the particular manner of attaehingthe cutters 18 to the roller, as herein described, admitting of an easy changeability of the said cutters.

Having described my invention and the manner of operating, what I claim, and desire to secure by Letters Patent of the United States, :is-

1. The combination, with the roller 10, having at its periphery rubber facings 23, of the perforating-eutters secured to the roller between said facings, the central shaft 11, the handle 8, and presser 12, substantially as specified.

2. In a roller-punch, the co1nbination,witl1 the handle 8, provided with the presser 12, grasp 30, and jaws 9, of the roller 10, mounted under the presser and rotating between the jaws, said roller having a recess 16 formed in one side thereof, the tubular cutters 18, with cutting-points 22, mounted in radial openings 19 of the periphery 20, whereby the cuttings from the paper pass through the cutters and into the recess 1G, said recess also facilitating in adjusting said cutters, substantially as specified.

3. In a roller-punch, the combination, with the handle 8, having presser l2, grasp 30, and jaws 9, of the roller 10, mounted directly under the presser and rotating between the jaws, said roller having a recess 16 formed in one side thereof, the tubular cutters 18, with cuttin g-points 22 mounted in radial openings 19 of the periphery 20, the grooves 23 on the' circumference of the roller on each side of the cutters, adapted to receive elastic material, which draws the paper from the cuttingpoints during the movement of the roller, and said recess 16, adapted to receive the cuttings from the paper as it passes through the cutters, substantially as specified.

In testimony whereof I affix my signature in presence of two witnesses.

ALEXANDER HAMILL. Vitiiesses:

IVM. L. BAILIE, JNO. T. MADDoX. 

